Oldsmobile Intrigue is a smooth, comfortable sedan. Its twin-cam V6 engine, introduced last year, delivers lots of power for quick passes on two-lane roads. The Intrigue provides quick, accurate steering, agile handling, excellent high-speed stability and a nice ride quality on bumpy roads. A handsome interior, available in tasteful leather, features well-designed climate controls. The Intrigue seats four people comfortably or its rear seats can be folded down to make room for a lot of luggage.An attractive, expressive sedan, the Intrigue is arguably the best of the General Motors sedans in this class. More important, it is an enjoyable car more than capable of holding its own against such great mid-size competitors as the